diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2013-12-12 16:38:17 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-05-13 18:39:00 +0200 |
| commit | 85de721c46ba8ad9b283b2b3e307c9a3e8425042 (patch) | |
| tree | fd49693fa164755b123d15636a10d3ee3d949d85 | |
| parent | [media] v4l: Check pad arguments for [gs]_frame_interval (diff) | |
| download | linux-85de721c46ba8ad9b283b2b3e307c9a3e8425042.tar.xz linux-85de721c46ba8ad9b283b2b3e307c9a3e8425042.zip | |
[media] media: Use a better owner for the media device
mdev->fops->owner is actually the owner of the very same module which
implements media_device_register(), so it can't be unloaded anyway. Instead,
use THIS_MODULE through a macro as does video_register_device().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
| -rw-r--r-- | drivers/media/media-device.c | 7 | ||||
| -rw-r--r-- | drivers/media/media-devnode.c | 5 | ||||
| -rw-r--r-- | include/media/media-device.h | 4 | ||||
| -rw-r--r-- | include/media/media-devnode.h | 3 |
4 files changed, 12 insertions, 7 deletions
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c index d5a7a135f75d..51217f00a668 100644 --- a/drivers/media/media-device.c +++ b/drivers/media/media-device.c @@ -372,7 +372,8 @@ static void media_device_release(struct media_devnode *mdev) * - dev must point to the parent device * - model must be filled with the device model name */ -int __must_check media_device_register(struct media_device *mdev) +int __must_check __media_device_register(struct media_device *mdev, + struct module *owner) { int ret; @@ -388,7 +389,7 @@ int __must_check media_device_register(struct media_device *mdev) mdev->devnode.fops = &media_device_fops; mdev->devnode.parent = mdev->dev; mdev->devnode.release = media_device_release; - ret = media_devnode_register(&mdev->devnode); + ret = media_devnode_register(&mdev->devnode, owner); if (ret < 0) return ret; @@ -400,7 +401,7 @@ int __must_check media_device_register(struct media_device *mdev) return 0; } -EXPORT_SYMBOL_GPL(media_device_register); +EXPORT_SYMBOL_GPL(__media_device_register); /** * media_device_unregister - unregister a media device diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c index fb0f0469fad7..7acd19c881de 100644 --- a/drivers/media/media-devnode.c +++ b/drivers/media/media-devnode.c @@ -232,7 +232,8 @@ static const struct file_operations media_devnode_fops = { * the media_devnode structure is *not* called, so the caller is responsible for * freeing any data. */ -int __must_check media_devnode_register(struct media_devnode *mdev) +int __must_check media_devnode_register(struct media_devnode *mdev, + struct module *owner) { int minor; int ret; @@ -253,7 +254,7 @@ int __must_check media_devnode_register(struct media_devnode *mdev) /* Part 2: Initialize and register the character device */ cdev_init(&mdev->cdev, &media_devnode_fops); - mdev->cdev.owner = mdev->fops->owner; + mdev->cdev.owner = owner; ret = cdev_add(&mdev->cdev, MKDEV(MAJOR(media_dev_t), mdev->minor), 1); if (ret < 0) { diff --git a/include/media/media-device.h b/include/media/media-device.h index 12155a9596c4..6e6db78f1ee2 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -87,7 +87,9 @@ struct media_device { /* media_devnode to media_device */ #define to_media_device(node) container_of(node, struct media_device, devnode) -int __must_check media_device_register(struct media_device *mdev); +int __must_check __media_device_register(struct media_device *mdev, + struct module *owner); +#define media_device_register(mdev) __media_device_register(mdev, THIS_MODULE) void media_device_unregister(struct media_device *mdev); int __must_check media_device_register_entity(struct media_device *mdev, diff --git a/include/media/media-devnode.h b/include/media/media-devnode.h index 3446af279fca..0dc7060f9625 100644 --- a/include/media/media-devnode.h +++ b/include/media/media-devnode.h @@ -82,7 +82,8 @@ struct media_devnode { /* dev to media_devnode */ #define to_media_devnode(cd) container_of(cd, struct media_devnode, dev) -int __must_check media_devnode_register(struct media_devnode *mdev); +int __must_check media_devnode_register(struct media_devnode *mdev, + struct module *owner); void media_devnode_unregister(struct media_devnode *mdev); static inline struct media_devnode *media_devnode_data(struct file *filp) |